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GE Fanuc
Shop reliable GE Fanuc PLCs, I/O modules, CPUs, power supplies, and PACSystems components for industrial automation and factory control. Ideal for maintenance, line repair, and upgrade projects where uptime matters. All parts have been tested, inspected, and are ready to ship. Perfect replacements for aging systems, including Series 90-30, 90-70, VersaMax, RX3i/RX7i, and Genius I/O.
Reduce downtime, extend system life, and avoid costly changeovers with GE Fanuc hardware you can trust.
GE Fanuc Product FAQ — 90-Series, VersaMax & RX-System Compatibility
Can GE Fanuc 90-30 CPU modules be replaced without modifying I/O configuration?
Yes — when CPU memory capacity and rack compatibility match. Communication modules may require firmware alignment, which we verify before shipping.
Can GE Fanuc I/O modules be substituted with newer revisions?
Often — as long as addressing scheme, rack layout, and backplane current draw remain within spec. We confirm module interchange before recommending a part.
Can GE Fanuc controllers interface with modern HMIs?
Yes — MODBUS, Ethernet messaging, and manufacturer-specific drivers allow communication with many third-party HMIs. We validate protocol and baud requirements for integration.
Can RX3i systems replace older GE Fanuc 90-70 PLCs without rewriting logic?
In many cases — compatibility depends on memory architecture, ladder instruction support, and I/O mapping. We evaluate these factors to ensure a smooth migration path.
Are GE Fanuc servo drives and motors interchangeable with FANUC equivalents?
Only in select cases — compatibility requires matching encoder specification and drive firmware. We verify each pairing to maintain performance and feedback stability.
Can you replace a GE Fanuc 90-30 CPU without modifying the program logic?
Yes — we supply compatible CPU revisions so your existing logic continues running with minimal change.
Can you help replace GE Fanuc I/O modules with newer versions?
Yes — we confirm addressing and backplane power to ensure a true drop-in upgrade.
Can GE Fanuc PLCs work with new HMI hardware?
Yes — we configure compatible protocols so modern HMIs connect reliably to your controller.
Can RX3i hardware replace a 90-70 PLC platform?
Yes — we match memory, I/O count, and instruction sets to ensure the migration preserves logic and scan cycle timing.
Can GE Fanuc servo products be replaced using FANUC parts?
Sometimes — we check encoder, motor spec, and feedback type to confirm safe interchange.
GE Fanuc
Shop reliable GE Fanuc PLCs, I/O modules, CPUs, power supplies, and PACSystems components for industrial automation and factory control. Ideal for maintenance, line repair, and upgrade projects where uptime matters. All parts have been tested, inspected, and are ready to ship. Perfect replacements for aging systems, including Series 90-30, 90-70, VersaMax, RX3i/RX7i, and Genius I/O.
Reduce downtime, extend system life, and avoid costly changeovers with GE Fanuc hardware you can trust.
GE Fanuc Product FAQ — 90-Series, VersaMax & RX-System Compatibility
Can GE Fanuc 90-30 CPU modules be replaced without modifying I/O configuration?
Yes — when CPU memory capacity and rack compatibility match. Communication modules may require firmware alignment, which we verify before shipping.
Can GE Fanuc I/O modules be substituted with newer revisions?
Often — as long as addressing scheme, rack layout, and backplane current draw remain within spec. We confirm module interchange before recommending a part.
Can GE Fanuc controllers interface with modern HMIs?
Yes — MODBUS, Ethernet messaging, and manufacturer-specific drivers allow communication with many third-party HMIs. We validate protocol and baud requirements for integration.
Can RX3i systems replace older GE Fanuc 90-70 PLCs without rewriting logic?
In many cases — compatibility depends on memory architecture, ladder instruction support, and I/O mapping. We evaluate these factors to ensure a smooth migration path.
Are GE Fanuc servo drives and motors interchangeable with FANUC equivalents?
Only in select cases — compatibility requires matching encoder specification and drive firmware. We verify each pairing to maintain performance and feedback stability.
Can you replace a GE Fanuc 90-30 CPU without modifying the program logic?
Yes — we supply compatible CPU revisions so your existing logic continues running with minimal change.
Can you help replace GE Fanuc I/O modules with newer versions?
Yes — we confirm addressing and backplane power to ensure a true drop-in upgrade.
Can GE Fanuc PLCs work with new HMI hardware?
Yes — we configure compatible protocols so modern HMIs connect reliably to your controller.
Can RX3i hardware replace a 90-70 PLC platform?
Yes — we match memory, I/O count, and instruction sets to ensure the migration preserves logic and scan cycle timing.
Can GE Fanuc servo products be replaced using FANUC parts?
Sometimes — we check encoder, motor spec, and feedback type to confirm safe interchange.
Browse our product lines
Click on a product line below to view available products.
GE Fanuc Emerson | RSTi PacSystem
The PACSystems RSTi (now under Emerson) is GE’s answer to modular, Profinet‑centric remote I/O. It features compact DIN‑rail‑mounted modules with dual Ethernet ports, hot‑swap capability and robust diagnostics. The system supports a broad range of I/O types, including safety and specialty modules, and integrates with multiple fieldbus adapters. While RSTi brings modern capabilities, it still requires proprietary software and can be pricey. If you’re already committed to PACSystems, it’s a logical choice; if not, you may find comparable, more open I/O solutions elsewhere.
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GE Fanuc Emerson | QuickPanel Displays
GE’s QuickPanel and QuickPanel+ HMIs provide touchscreen operator interfaces in sizes from 5 to 15 inches, with options ranging from simple monochrome displays to full‑color widescreens. They run Windows CE on Intel or ARM processors and include serial, Ethernet, USB and SD interfaces, making them versatile for mid‑range HMI tasks. However, the Windows CE platform and GE‑specific configuration tools feel dated compared with modern, web‑based HMIs. For new deployments you might look at vendor‑agnostic panels with contemporary operating systems and responsive web clients.
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GE Fanuc Emerson | Series Three
Series Three PLCs were microprocessor‑based controllers that could handle up to 400 I/O points and provided 4K words of user memory. This architecture supported small to medium applications but has been obsolete for years. Replacement parts are available, but it’s wise to migrate to a current platform rather than prolong the life of equipment that lacks support and requires DOS‑based programming tools.
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GE Fanuc Emerson | RX3i PacSystem
The RX3i PACSystem is Emerson’s evolutionary upgrade from the 90‑30 line. It retains backward compatibility with existing 90‑30 I/O and racks but adds PCI‑based backplanes and a family of high‑speed CPUs with embedded Ethernet. This makes migration straightforward, yet the platform still straddles two backplane technologies and requires GE’s Proficy software. It’s a practical interim step for sites with installed 90‑30 hardware, but new installations might skip the half‑measures and adopt fully integrated PAC architectures that don’t carry the baggage of two decades of design decisions.
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GE Fanuc Emerson | Series 90-70
GE’s Series 90‑70 PLC family is built around a VME‑bus architecture and supports IEC‑61131‑3 languages, making it more capable than the entry‑level 90‑30. It offers modular racks, wide I/O options and optional redundancy, but this line is at least a generation behind modern controllers. While it still excels in legacy applications that require Genius I/O or migration from older racks, new projects should weigh the complexity and cost of 90‑70 hardware and software against newer PAC systems that deliver higher performance, easier configuration and better networking out of the box.
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GE Fanuc Emerson | Series 90-30
First released in the late 1980s, the Series 90‑30 originated from the GE/Fanuc joint venture and later passed through GE Intelligent Platforms before ending up under Emerson’s umbrella. Despite its age it remains a solid, low‑cost PLC platform with a modular rack‑based design and optional AC/DC and analog expansion. The flagship IC693CPU374 CPU includes Ethernet, but the system still relies on older power supplies and battery packs. It’s a sensible choice for retrofits or low‑complexity tasks, yet anyone investing in new automation should recognize that the architecture is decades old and consider migrating to more modern PAC systems to future‑proof their plant.
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GE Fanuc Emerson | Genius I/O
Genius I/O modules were once GE’s flexible distributed I/O solution: cast‑aluminium blocks that could be mounted anywhere in a plant and configured via software to reduce wiring and commissioning time. The line has been officially discontinued, but many systems still depend on these smart blocks. They can simplify remote I/O and support up to 31 devices over a single bus. Nevertheless, the technology is dated, limited to serial communication, and replacement parts come from secondary markets. If you’re maintaining Genius I/O, stock up on spares; if you’re designing new systems, look at modern distributed I/O platforms with Ethernet‑based protocols.
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GE Fanuc Emerson | Field Control
Field Control I/O was a rugged, DIN‑rail‑mounted distributed I/O system that GE promoted for process industries such as water treatment. The modules integrated terminal blocks and electronics in a compact housing, saving panel space and wiring. But the line is obsolete and no longer made; you’re dependent on spare parts and repairs. While it’s still serviceable for existing plants, engineers designing new systems should adopt newer remote I/O solutions that support modern protocols and better diagnostics.
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GE Fanuc Emerson | Versamax
VersaMax PLCs are modular controllers aimed at mid‑range applications. They support a variety of CPU modules and can be expanded with discrete, analog and specialty I/O, plus communication modules for Genius, Profibus, DeviceNet and Ethernet. Hot‑swap capability and IEC‑61131‑3 programming languages are positives. However, the product is not cutting‑edge: the CPUs are limited compared with today’s PACs, and reliance on legacy networks may hinder integration. Use VersaMax if you need compatibility with GE’s installed base; otherwise evaluate newer systems offering higher performance and simpler networking.
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GE Fanuc Emerson | Series One
The Series One PLC, introduced decades ago, was GE’s first compact, rack‑based controller. It offered 1700 words of program memory and up to 112 I/O points using expansion racks. The line has long been discontinued, leaving spare parts and repair services as the only lifeline. If you’re running Series One hardware, plan a migration because memory, speed and networking capabilities fall far short of modern requirements.
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GE Fanuc Emerson | Versamax Micro
The VersaMax Micro series is GE’s compact PLC range aimed at small‑scale machine control, with integrated CPU, I/O and options for expansion up to about 84 points. It offers a budget‑friendly path with features like high‑speed counters, PID instructions and built‑in serial ports. That said, its programming environment is dated and memory is limited. It’s fine for straightforward tasks, but if you anticipate growth or need Ethernet or advanced motion, consider stepping up to the VersaMax modular family or a more modern micro‑PLC from other vendors.
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GE Fanuc Emerson | Power Modules
RSTi‑EP power modules, sometimes called potential distribution or AUX modules, distribute 24‑V power to I/O modules within a station. They’re passive devices — no fieldbus interface — and snap onto DIN rails with spring‑style connections. Rated IP20 and V‑0, they’re suited for indoor industrial environments but need protection from moisture and dust. With up to 16 channels, they simplify wiring but add another component to purchase and maintain; integrated power distribution in a single backplane might reduce complexity.
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GE Fanuc Emerson | Network Adapters
GE’s Fieldbus network adapters provide the interface between modular I/O stations and the chosen fieldbus. They handle all data and diagnostic traffic and supply power to the attached modules. These DIN‑rail devices are passive, IP20‑rated and draw from the PLC’s power supply. Various versions support different protocols (Profinet, Profibus, Ethernet/IP), each with specific temperature and mounting requirements. They’re essential for RSTi‑EP systems but add another proprietary component to manage; some users may prefer I/O platforms with integrated networking to reduce parts count.
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GE Fanuc Emerson | Series Five
Series Five PLCs were designed as GE’s mid‑range controllers, combining features from the earlier Series One, Three and Six families. They use 6‑ or 8‑slot base units, modular CPUs and a range of I/O including analog and motion modules, and can expand to thousands of points using remote racks. Programming is via the vintage Logicmaster 5 software. While robust and modular, Series Five hardware is decades old and lacks Ethernet or modern programming environments. Keep it running if you must, but plan to replace it with a contemporary PAC.
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GE Fanuc Emerson | Series Six
GE’s Series Six controllers date back to the 1980s and were once the workhorse of heavy industry. They provide 32K words of memory, support Ladder programming and came in several models (60, 600, 6000). They require dedicated programming terminals and serial or parallel interfaces. With no embedded Ethernet and a design over 35 years old, these controllers should be considered for replacement rather than new installation. Spare parts are available, but the technology’s limitations and lifecycle status make long‑term use risky.
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GE Fanuc Emerson | Special Functions Modules
Special Function modules for the PACSystems RSTi‑EP line handle tasks beyond basic I/O, such as safe power feeds, PWM outputs, high‑speed counters, frequency measurement, serial communications and SSI encoder interfaces. They install with a ‘double‑click’ on DIN rails and offer IP20 protection and V‑0 flammability rating. These units enable safety circuits and specialty logic in a compact form. They’re useful for filling gaps in an RSTi system, but because they’re proprietary and limited to the RSTi ecosystem, they might lock you in; evaluate whether off‑the‑shelf safety relays or third‑party specialty modules could better meet your needs.
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GE Fanuc Emerson | Analog Outputs
Analog output modules provide 4 or 8 channels of voltage/current signals for controlling actuators in an RSTi‑EP system. They are compact (about 120 × 11.5 × 76 mm), snap onto DIN rails with a double‑click and carry an IP20 rating. Up to 64 I/O modules can be installed per station, but total throughput depends on data size and network speed. While these modules are easy to install, they offer limited resolution and lack features like channel isolation found in higher‑end analog output cards; evaluate whether they meet your accuracy requirements.
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GE Fanuc Emerson | Digital Inputs
Digital input modules complement the output modules and provide 2 to 16 channels for reading discrete signals. They connect via the fieldbus adapter but aren’t tied to a specific protocol, so they can work with various GE PLCs. Up to 64 active modules can be daisy‑chained in a single RSTi‑EP station, but the throughput depends on the network bandwidth and system configuration. With limited per‑channel speed and minimal onboard filtering, these inputs are suitable for standard sensor signals but may struggle with very high‑frequency or noisy environments — consider specialized counter modules where needed.
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GE Fanuc Emerson | Digital Outputs
GE’s digital output modules for the RSTi‑EP system provide 2 to 16 channels for driving discrete devices. They offer variants for sourcing, sinking, or mixed logic and use 1‑wire through 4‑wire connections. Each channel has a status LED and the modules integrate basic diagnostics for voltage and communication errors. Because inductive loads can feed energy back into the module, you’ll need external suppression devices. Current ratings vary from 0.5 A to 2 A per channel, so these modules are adequate for small solenoids and relays but insufficient for larger loads — plan accordingly.
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GE Fanuc Emerson | Analog Inputs
GE’s analog input modules accept voltage or current signals and support 2‑, 3‑ or 4‑wire connections. They’re configurable per channel and provide 16‑bit resolution. Standard models offer 4 or 8 inputs with status LEDs and built‑in surge protection for ±30 V; signals beyond that can damage the module. Like other RSTi‑EP I/O, up to 64 modules can be installed, but analog throughput is limited by the network adapter. These modules are fine for general‑purpose sensing, but for high‑speed or high‑accuracy measurement, consider specialized analog cards with isolation and higher resolution.
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GE Fanuc Emerson | RX7i
The RX7i PACSystem served as a high‑end successor to the 90‑70, providing Celeron/Pentium‑based CPUs with dual Ethernet and multiple serial ports. However, GE sunset the product in 2017, and it’s now only available as surplus or refurbished stock. If you already run RX7i controllers, you’ll want to source spares and plan a migration; if you’re considering new projects, skip this legacy platform and choose current PAC systems that offer long‑term support and cybersecurity enhancements.
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GE Fanuc Emerson | Accessories
The accessories line for RSTi‑EP and fieldbus stations is a collection of small but necessary bits: swivel markers, printable labels, termination kits, HD plugs, replacement base modules and plug‑in units. These items help organize wiring, label channels and physically secure modules. They’re handy for maintenance and customization but also highlight that the RSTi platform uses proprietary mechanical parts; keep spare markers and brackets on hand, or choose hardware with more standardized labeling and mounting options.
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